Home / 19,787.30-29,678.44-5,557.07

Finding the Fourth Proportional to 19,787.30, 29,678.44 and 5,557.07

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Solution

The fourth proportional to 19,787.30, 29,678.44 and 5,557.07 is: 8,334.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.30 : 29,678.44 = 5,557.07 : x
  2. Step 2: Convert to fraction form
    19,787.30/29,678.44 = 5,557.07/x
  3. Step 3: Cross multiply
    19,787.30x = 29,678.44 × 5,557.07
  4. Step 4: Simplify right side
    19,787.30x = 164,925,020.18
  5. Step 5: Solve for x
    x = 164,925,020.18/19,787.30
  6. Step 6: Final answer
    x = 8,334.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.